#VU94206 Memory leak in Linux kernel - CVE-2024-40936

Vulnerability identifier: #VU94206

Vulnerability risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-40936

CWE-ID: CWE-401

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to memory leak within the devm_cxl_add_region() and __create_region() functions in drivers/cxl/core/region.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

---

External links
https://git.kernel.org/stable/c/d8316838aa0686da63a8be4194b7a17b0103ae4a
https://git.kernel.org/stable/c/bbb5d8746381c82f7e0fb6171094d375b492f266
https://git.kernel.org/stable/c/49ba7b515c4c0719b866d16f068e62d16a8a3dd1

---

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.